CNC cuab yeej khoom xaiv

Tam sim no, cov cuab yeej siv dav siv CNC cuab yeej feem ntau suav nrog cov cuab yeej pob zeb diamond, cubic boron nitride cov cuab yeej, cov cuab yeej ceramic, cov cuab yeej sib xyaw, cov cuab yeej carbide thiab cov cuab yeej siab hlau.Qhov muaj ntau qib ntawm cov khoom siv txiav thiab lawv cov khoom sib txawv heev.Qhov tseem ceeb kev ua tiav cov ntsuas ntawm ntau yam cuab yeej cov cuab yeej tau teev hauv qab no.Qhov cuab yeej txiav cov khoom siv rau NC machining yuav tsum raug xaiv raws li qhov haujlwm thiab qhov xwm ntawm cov machining.Qhov xaiv ntawm cov cuab yeej txiav cov khoom siv yuav tsum tsim nyog nrog cov khoom ua kom phim, cov khoom siv txiav thiab kev coj ua cov khoom sib tw, feem ntau hais txog cov khoom siv kho tshuab, lub cev lub cev thiab cov khoom siv tshuaj ntawm ob qho kev sib tw, txhawm rau kom tau txais cov cuab yeej ntev tshaj plaws thiab kev txiav tawm ntau tshaj plaws.

1.Matching ntawm cov khoom siv txiav nrog cov khoom siv kho tshuab ntawm cov khoom machining Cov kev sib txuam ntawm cov cuab yeej txiav cov cuab yeej nrog cov yam ntxwv ntawm machining cov khoom feem ntau yog hais txog qhov sib txuam ntawm kev txiav cov cuab yeej nrog cov yam ntxwv xws li lub zog, tawv thiab tawv ntawm cov khoom ua haujlwm.Qhov khoom siv nrog cov cuab yeej sib txawv muaj haum rau cov khoom siv ua haujlwm sib txawv. (1) qhov nyuaj ntawm cov khoom siv cov cuab yeej yog: cov cuab yeej pob zeb> cubic boron nitride tuam> cov cuab yeej ceramic> carbide> siab hlau siab.Qhov dabtsi yog khoov lub zog ntawm cov khoom siv cuab yeej yog:> kev kub ceev steel carbide> ceramic lub cuab tam> pob zeb diamond thiab cubic boron nitride cov cuab yeej. (3) qhov kev txiav txim siab ntawm cov khoom siv tawv yog: kev kub ceev steel> carbide> cubic boron nitride, pob zeb diamond thiab cov cuab yeej ceramic.Qhov workpiece khoom nrog siab hardness yuav tsum tau ua nrog lub cuab yeej nrog tawv dua. Lub hardness ntawm cov cuab yeej cov khoom siv yuav tsum siab dua qhov nyuaj ntawm cov khoom siv workpiece, feem ntau yuav tsum siab dua 60HRC.Qhov nyuaj cov cuab yeej cov khoom siv, qhov zoo dua nws hnav tsis kam yuav yog.Piv txwv li, thaum tus nqi ntawm cov cobalt hauv cemented carbide nce, nws lub zog thiab toughness nce thiab hardness txo, thiab nws yog haum rau ntxhib machining.Thaum cov ntsiab lus cobalt poob, nws hardness thiab hnav tsis kam nce, thiab nws yog haum rau xov.Tools nrog zoo kub kub txhua yam khoom yog tshwj xeeb tshaj yog rau kev kub ceev txiav.Qhov kev ua haujlwm kub ntawm cov nplais tej cuab yeej ua rau lawv txiav ntawm kev kub ceev, uas yog 2 ~ 10 zaug sai dua carbide.

2.Cov khoom siv txiav cov khoom siv thiab cov khoom siv lub cev ntawm cov khoom ua cov khoom sib txawv cov cuab yeej nrog cov khoom sib txawv ntawm lub cev, xws li, siab thermal conductivity thiab qis melting taw tes ntawm cov cuab yeej high-speed steel, siab melting taw tes thiab tsawg thermal nthuav ntawm cov cuab yeej ceramic, siab thermal conductivity thiab tsawg thermal nthuav ntawm pob zeb diamond cuab yeej, thiab lwm yam, tsim nyog rau kev ua cov khoom ua haujlwm workpiece yog txawv.Thaum machining lub workpiece nrog tsis zoo thermal conductivity, cov cuab yeej cov khoom siv nrog cov zoo thermal conductivity yuav tsum tau siv los ua kom cov cua sov sai sai kis tawm thiab txo qhov txiav kub.Qhov siab mus rau siab thermal conductivity thiab thermal diffusivity, pob zeb diamond yog qhov yooj yim tso tawm los ntawm kev txiav cov cua sov thiab yuav tsis tsim qhov zoo ntawm thermal deformation, uas yog qhov tshwj xeeb rau precision machining cov cuab yeej nrog qhov siab qhov siab xav tau.Qhov kub tiv thaiv qhov kub ntawm cov cuab yeej siv ntau yam khoom siv: pob zeb diamond cuab tam 700 ~ 8000C, PCBN cuab yeej 13000 ~ 15000C, c cov cuab yeej zoo nkauj 1100 ~ 12000C, TiC (N) lub hauv paus cemented carbide 900 ~ 11000C, WC puag ultra-zoo lis cemented carbide 800 ~ 9000C, HSS 600 ~ 7000C.Qhov kev txiav txim ntawm thermal conductivity ntawm ntau cov cuab yeej cov khoom siv: PCD> PCBN> WC cemented carbide> TiC (N) cemented carbide> HSS> si3n4-based ceramic> a1203-raws ceramic.Qhov kev txiav txim ntawm lub thermal nthuav coefficient ntawm ntau cov cuab yeej cov khoom siv yog: HSS> WC cemented carbide> TiC (N)> A1203-based ceramic> PCBN > Si3N4 puag ceramic> PCD.Qhov kev txiav txim ntawm thermal shock tsis kam ntawm ntau yam cuab yeej cov cuab yeej yog HSS> WC hard alloy> si3n4-puag ceramic> PCBN> PCD> TiC (N) nyuaj alloy> a1203-puag ceramics.

3.Cov teeb meem sib txuam ntawm kev txiav cov khoom siv thiab cov cuab yeej tshuaj lom neeg ntawm cov khoom ua tseem ceeb hais txog qhov sib piv ntawm cov cuab yeej tshuaj lom neeg cov cuab yeej xws li kev sib raug zoo, tshuaj lom neeg cov tshuaj tiv thaiv, diffusion thiab yaj ntawm cov khoom siv txiav thiab cov khoom ua haujlwm work.Different cov khoom siv ntawm cov cuab yeej tsim nyog rau kev ua cov khoom siv workpiece txawv. (1) txhua yam ntawm cov cuab yeej txiav cov khoom nplaum kub (thiab cov hlau) rau PCBN> ceramic> cemented carbide> HSS. (2) oxidation tsis kub ntawm ntau yam cuab yeej txiav cov cuab yeej. yog raws li hauv qab no: ceramic> PCBN> carbide pob zeb diamond> HSS.The diffusion lub zog ntawm cov khoom ntuag (rau cov hlau) yog: pob zeb diamond> si3n4-puag ceramic> PCBN> a1203-puag ceramic.The diffusion lub zog (rau titanium) yog a1203- puag ceramic> PCBN> SiC> Si3N4> pob zeb diamond.
4.Txawm hais dav dav, PCBN, cov cuab yeej ceramic, cov roj carbide thiab TiCN lub hauv paus carbide cov cuab yeej tsim nyog rau cov kev hais txog zauv tswj kev ua ntawm ferrous.


Sijhawm Tshaj Tawm: Lub Ib Hlis-21-2021